/*
 * Copyright (c) 2003-2010, Live Media Pty. Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice, this list of
 *     conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice, this list of
 *     conditions and the following disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *  3. Neither the name of Live Media nor the names of its contributors may be used to endorse
 *     or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.colony.remote.rpc;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import com.argot.TypeException;
import com.argot.TypeInputStream;
import com.argot.TypeMap;
import com.argot.TypeOutputStream;
import com.argot.TypeReader;
import com.argot.TypeWriter;
import com.argot.network.TypeLink;
import com.argot.remote.transport.TypeEndPoint;

import com.colony.IContainer;

import com.colony.remote.RemoteException;

public class RpcMetaServer
implements TypeLink
{
	private TypeMap _reference;
	private IContainer _environment;
	private RpcDelegateFactory _delegates;
	private TypeWriter _rpcMetaResponse;
	private TypeReader _rpcMetaRequest;
	
    public RpcMetaServer( RpcDelegateFactory delegates, IContainer environment, TypeMap reference )
    throws TypeException
    {
    	_environment = environment;
        _reference = reference;
        _delegates = delegates;
        _rpcMetaResponse = _reference.getWriter(_reference.getStreamId(RpcMetaResponse.TYPENAME));
        _rpcMetaRequest = _reference.getReader(_reference.getStreamId(RpcMetaRequest.TYPENAME));
    }

	public void processMessage( TypeEndPoint connection ) 
	throws IOException, TypeException
	{
		RpcMetaMethodRequest request;
		
		// Step 1.  Read the request.
		TypeInputStream sin = new TypeInputStream( connection.getInputStream(), _reference );
		request = (RpcMetaMethodRequest) _rpcMetaRequest.read(sin);
			
			
		// Step 2.  Find the Object and Process the request.
		Object o = _environment.getObject( request.getLocation() );
		if ( o != null )
		{
		    // Resolve the proxy object.
			RpcDelegate back = _delegates.getBackDelegate( o.getClass() );
	        if ( back != null )
	        {
	        	try
	        	{
	        		back.processRequest( request, o );
	    		}
	    		catch (RemoteException e)
	    		{
	    			request.setException(e);
	    		}
	        	
	        }
	        else
			{
				request.setException( new RemoteException( "no delegate:" + o.getClass().getName() ));
			}
		}
		else
		{
			request.setException( new RemoteException("remote object not found:" + request.getLocation().toString()));
		}

		// Step 3.  Send the response.
		//ByteArrayOutputStream baos = new ByteArrayOutputStream();
		TypeOutputStream tmos = new TypeOutputStream( connection.getOutputStream(), _reference );
		_rpcMetaResponse.write(tmos,request);
		/*
		baos.close();
		
		byte[] data = baos.toByteArray();
		for (int x=0; x<data.length;x++)
		{
			if ( data[x] > 35 && data[x] < 125 )
			{
				System.out.print( " " );
				System.out.print( (char) data[x] );
			} else {
				System.out.print(" " + data[x] );
			}
		}
		
		OutputStream out = connection.getOutputStream();
		out.write(data);
		out.flush();
		*/
	}
	
}
